02/25/21
Message Overview:
Message Name:
FAULT
Message Code:
B3-268885
Associated CAS:
| Reporting LRU: | R GEN PMG RLY2 |
| System Description: | 24-61-00 |
| Schematic Diagram: | None |
| Wiring Diagram: | None |
Message Description:
The Right Generator PMG Relay 2 (RGPR2) has failed.
Possible Causes:
- Right Generator PMG Relay 2 (RGPR2) (K164)
- Right DC Power-Center Protection (RPROT) (PCB2)
- Right DC Power Center (RDCPC) (A36)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin:
- AW300-24-0024 - Electrical System - Troubleshooting Tips
- AW300-24-0137 - Y06 Electrical System Upgrade
- AW300-24-0162 - Service Bulletin 100-24-20 - DC Power Center (DCPC) System - Inspection and Replacement of Internal Fuses in the L/H and R/H DC Power Center (DCPC)
Forum Articles/Infoservice/Newsletter: None
Quick Links:
| Removal of the DC Power Center (DCPC) | AMM 24-61-01-000-801 |
| Installation of the DC Power Center (DCPC) | AMM 24-61-01-400-801 |
| Functional Test of the DC Power Center (DCPC) | AMM 24-61-01-720-801 |
| Removal of the DC Power-Center Protection | AMM 24-61-77-000-801 |
| Installation of the DC Power-Center Protection | AMM 24-61-77-400-801 |
| Removal of the DC Power-Center Relays | AMM 24-61-81-000-801 |
| Installation of the DC Power-Center Relays | AMM 24-61-81-400-801 |
| Wiring - Maintenance Practices - ALL | SPM 20-12-00-02 |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 |
Troubleshooting Recommendations:
- Swap the Right Generator PMG Relay 2 (K164) with Left Generator PMG Relay 2 (K163). Is the fault message still present?
- If YES, continue with next step.
- If NO, replace the defective Generator PMG Relay.
- Swap the Right DC Power-Center Protection (PCB2) with the Left DC Power-Center Protection (PCB1). Is the fault message still present?
- If YES, continue with next step.
- If NO, replace the defective Right DC Power-Center Protection.
- Replace Right DC Power Center (A36).
- Do close out.
